How to Configure Fan Working Mode on Huawei S2700?

Questions:
How to configure Fan Working Mode on Huawei Quidway S2700?

Answer:
Procedure
Run:display fan verbose,The fan operating status and working mode are displayed.
Run:system-view,The system view is displayed.
Run:set fan work-mode { quiet | cool },The working mode of manually-controlled fans is configured.By default, manually-controlled fans work in cool mode.
Run:set fan work-mode cool,The working mode of variable-speed fans is configured.By default, variable-speed fans work in auto mode.

NOTE:
-Manually-controlled fans can work in quiet or cool mode.
-Variable-speed fans can work in auto or cool mode.Only several of the S3700 has variable-speed fans.

Huawei S2700 Price and Specification: http://www.huanetwork.com/huawei-switch-s2700-series-price_c77